Is it pronounced like DIX, like the first syllable of Dixon, or like DEE, as in the French word for 10 (dix). I actually think Dix pronounced the French way would be interesting as a MN--if Seven is done, and other random word names like Poet, Tranquil, etc., I think Dix could work, too. I rather like the suggestion of BrynnAmeliaDix (although that would spell BAD--which is a bit off-putting!). If you had a hard time with it, and don't really like the name itself, just the sentimentality, maybe you could change to the opposite pronunciation, or pass down a totally different family name? Or another name that honors the original Dix?